function changeFontSize(inc)
{
	var objContainer = document.getElementById('bodyContainer');
	if(objContainer.style.fontSize)
		var size = parseInt(objContainer.style.fontSize.replace("pt", ""));
	else
		var size = 12;
	
	objContainer.style.fontSize = size+inc + 'pt';
	
	var p = document.getElementsByTagName('p');
	for(n=0; n<p.length; n++)
	{
		if(p[n].style.fontSize)
		   var size = parseInt(p[n].style.fontSize.replace("pt", ""));
		else
		   var size = 12;
		   
		p[n].style.fontSize = size+inc + 'pt';
	}
	
	
	var td = document.getElementsByTagName('td');
	for(n=0; n<td.length; n++)
	{
		if(td[n].style.fontSize)
		   var size = parseInt(td[n].style.fontSize.replace("pt", ""));
		else
		   var size = 12;
		   
		td[n].style.fontSize = size+inc + 'pt';
	}
}

var popUpWin=0;
function popUpWindow(URLStr, width, height)
{
  if(popUpWin)
  {
    if(!popUpWin.closed) popUpWin.close();
  }
  popUpWin = open(URLStr, 'popUpWin', 'toolbar=no,location=no,directories=no,status=no,menub ar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width='+width+',height='+height+',left=5,top=5,screenX=5,screenY=5');
}

//Opacity functions courtesy of:  http://www.brainerror.net/scripts_js_blendtrans.php
function opacity(id, opacStart, opacEnd, millisec) {
	//speed for each frame
	var speed = Math.round(millisec / 100);
	var timer = 0;

	//determine the direction for the blending, if start and end are the same nothing happens
	if(opacStart > opacEnd) {
		for(i = opacStart; i >= opacEnd; i--) {
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	} else if(opacStart < opacEnd) {
		for(i = opacStart; i <= opacEnd; i++)
			{
			setTimeout("changeOpac(" + i + ",'" + id + "')",(timer * speed));
			timer++;
		}
	}
}

//change the opacity for different browsers
function changeOpac(opacity, id) {
	var object = document.getElementById(id).style; 
	object.opacity = (opacity / 100);
	object.MozOpacity = (opacity / 100);
	object.KhtmlOpacity = (opacity / 100);
	object.filter = "alpha(opacity=" + opacity + ")";
}

function shiftOpacity(id, millisec) {
	//if an element is invisible, make it visible, else make it ivisible
	if(document.getElementById(id).style.opacity == 0) {
		opacity(id, 0, 100, millisec);
	} else {
		opacity(id, 100, 0, millisec);
	}
}

function blendimage(divid, imageid, imagefile, millisec) {
	var speed = Math.round(millisec / 100);
	var timer = 0;
	
	//set the current image as background
	document.getElementById(divid).style.backgroundImage = "url(" + document.getElementById(imageid).src + ")";
	
	//make image transparent
	changeOpac(0, imageid);
	
	//make new image
	document.getElementById(imageid).src = imagefile;

	//fade in image
	for(i = 0; i <= 100; i++) {
		setTimeout("changeOpac(" + i + ",'" + imageid + "')",(timer * speed));
		timer++;
	}
}

function currentOpac(id, opacEnd, millisec) {
	//standard opacity is 100
	var currentOpac = 100;
	
	//if the element has an opacity set, get it
	if(document.getElementById(id).style.opacity < 100) {
		currentOpac = document.getElementById(id).style.opacity * 100;
	}

	//call for the function that changes the opacity
	opacity(id, currentOpac, opacEnd, millisec)
}